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Updated: Jul 9, 2026

Injection of An. stephensi Embryos to Generate Malaria-resistant Mosquitoes
Published on: July 4, 2007
[Malaria epidemic situation in Jiangsu Province in 2006]
Wei-ming Wang1, Qi Gao, Xiao-lin Jin
1Jiangsu Provincial Institute of Parasitic Diseases, Wuxi 214064, China.
Abstract:
In 2006, there were 767 reported malaria cases in Jiangsu Province with an incidence of 1.07 per thousand and increased by 16.57% in comparison to the previous year. Positive rate of blood examination in local febrile patients was 0.08% (293/361 896) but 1.23% (251/204 40) in mobile population (P<0.01). Cases with relapses occupied 9.00% of the total. The density of Anopheles sinensis was 0.61 per net and increased by 110% more than the year 2005 (0.29/net). It is indicated that the increase of A. sinensis density has been the main factor for malaria recurrence in the area north of Huaihe River in the Province.
Insights
Malaria cases in Jiangsu Province increased in 2006, driven by a rise in Anopheles sinensis mosquito density, particularly affecting mobile populations and leading to recurrences.
Area of Science:
- Epidemiology
- Vector-borne diseases
- Public health
Context:
- Malaria incidence in Jiangsu Province, China, showed a significant increase in 2006 compared to the previous year.
- The study highlights a higher malaria detection rate in mobile populations versus local febrile patients.
- Relapsing malaria cases constituted a notable proportion of the total reported cases.
Purpose:
- To analyze the epidemiological trends of malaria in Jiangsu Province in 2006.
- To identify factors contributing to the observed increase in malaria cases and recurrence.
- To investigate the correlation between Anopheles sinensis density and malaria recurrence.
Summary:
- A total of 767 malaria cases were reported in 2006, representing an incidence of 1.07 per thousand, a 16.57% rise from 2005.
- The positive blood examination rate was significantly higher in mobile populations (1.23%) compared to local febrile patients (0.08%).
- Anopheles sinensis mosquito density increased by 110% in 2006, identified as the primary driver of malaria recurrence north of the Huaihe River.
Impact:
- Findings underscore the importance of targeted malaria surveillance and control strategies for mobile populations.
- The study emphasizes the critical role of vector control, specifically managing Anopheles sinensis populations, in preventing malaria resurgence.
- Results provide crucial data for public health interventions aimed at reducing malaria burden in the region.
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